I mostly deal with chroot environments and today I put some
of my time over it. The question that come to me is How to
Break up chroot() jail? Sounds tricky to me initially. But
its simple, root user cant be chrooted. If he does, he can
break it. Simple logic.

1. Create a temp dir and chroot to it.
2. Change the current working dir by repeattedly running
chdir(..).
3. Run chroot(.) and this makes you to move to root dir.